flutter show dialog
Future<void> _showMyDialog() async { return showDialog<void>( context: context, barrierDismissible: false, // user must tap button! builder: (BuildContext context) { return AlertDialog( title: const Text('AlertDialog Title'), content: SingleChildScrollView( child: ListBody( children: const <Widget>[ Text('This is a demo alert dialog.'), Text('Would you like to approve of this message?'), ], ), ), actions: <Widget>[ TextButton( child: const Text('Approve'), onPressed: () { Navigator.of(context).pop(); }, ), ], ); }, ); }